2015 225 ProXS
Serial: 2B093133
The Mercury manual calls for NGK IZFR6J-11 or NGK IZFR6J plugs set at 1.09mm (0.043in). I know the -11 plugs are pregapped but still need to verify the gap. If you use the NGK IZR6J plugs, how do you get .043” gap. I haven’t found a wire gap tool that size. The closest ones I have found are .044”. If you gap to that size, will the .001” make a difference?
Thanks
Last edited by Mike2718; 07-15-2019 at 10:06 PM.
Have a Blessed Day,
Mike
They sell the correct size wire style gaping tool. You can use a #57 drill bit as a gauge in a pinch.
Thanks Savage. Could you tell me where I could get a gap tool that has an .043 wire. I appreciate the help.
Have a Blessed Day,
Mike
get a set of feeler gauges and put 22 and 21 together
Don't do this^^^^^ use a wire gauge only on iridium tip sparkplugs.Originally Posted by techman
Check with a quality tool dealer like Snap-on or Mac Tool......or get the #57 drill bit to use as a go-no-go gauge.
I use a .042 gauge as a go, and a .044 gauge as a no-go. Don't make the gap large enough to pass the .044 wire. If it passes the .042 then you are REAL close...
2008 Bass Cat Pantera Classic
2014 Mercury Pro XS 200
FAQ says .042 to .044. If your at .044 trying to get .043, I think your splitting hairs.
You’re probably right. I was originally asking since the Mercury manual says .043”. I didn’t think .001” would be a big deal but I just didn’t want to a chance with the cost of motors these days.
Savage, I couldn’t find the gauge at MAC or Snap On but got the #57 bits ordered from Home Depot. I did finally find one on eBay though. It took some serious searching.
OldTimer57, that makes perfect sense using .042” & .044” as a go and no-go.
I actually even found a pack of some of my hooks that measured out at .0430” exactly. There were some that measured .0425” and some at .0435” but most were .0430” exactly.
Thanks everyone. I think between the #57 bits and the gauge I found on eBay and my hooks, I should be good.
I think next time, I will just order the pre-gapped plugs and just check each one.
Have a Blessed Day,
Mike
Eeesh, I've been using the feeler gauges. VERY gently however.
2017 Phoenix 819
2016 200ProXS, s/n 2B359849, Mod 1200P73BD
DO NOT use feeler gauges.
Use a Wire Gauge Tool- by the "Go and No-Go Method".
My tool has .040" and .044". Using the "Go and No-Go Method"... .040" should slide in free and easy with no effort. .044" will not go.
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
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